040000 tree f84055d403be628402f13c0c590b24b99afb3a6f	build
040000 tree 9d8bba5bbb31a275d6d5072cdf5740b46098f551	core
040000 tree c37f30aa2345d1120b7ec54eec582d24764b2144	cpp
040000 tree 3f73fdb8f9bfe1f022d36d20f24ac82d602f9d4c	distrib